Michael redlinger and charles morgan



(No Model.)

M. REDLINGER & 0. MORGAN,

STOVEPIPE DAMPER.

No. 520,379. Patented May 22, 1894. A

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.edge of the blade.

UNITED STATES PATENT i FFICEe MICHAEL REDLINGER AND CHARLES MORGAN, FREEPORT, ILLINOIS, ASSIGNORS TO THE ARCADE MANUFACTURING COMPANY, OF SAME PLACE.

STOVEPlPE-DAMPER.

SPECIFICATION forming part of Letters Patent No. 520,379, dated May 22, 1894.

Application filed January 26,1894. Serial No. 498,077. (No model.)

To all w/wm it may concern:

Be it known that we, MICHAEL REDLINGER and CHARLES MORGAN, citizens of the United States of America, residing at Freeport, in the county of Stephenson and State 'of Illinois, have invented certain new and useful Improvements in Stovepipe-Dampers, of which the following is a specification.

Our invention relates to improvements in stovepipe dampers, and more particularly to improvements'in the shanks of such dampers and the attachment ofhandles thereto.

The invention is fully described and explained in this specification and shown in the accompanying drawings, in which Figure 1 is a plan of a damper embodying our improvements. Fig. 2 is a plan of a portionof the shank, the handle being shown in sectlon. Fig. 3 is a longitudinal section of a portion of the shank; and Fig. 4 is a transverse section of the shank and a part of the damper blade through the line acw, Fig. 1.

In the views, A is a preferably circular dam per blade, formed with the usual diametrical slot which is crossed by bridges or clasps, a, a, lying on opposite faces of the blade and connecting its two halves. A detachable shank, B, is adapted to lie between the clasps, a, a and terminates at one end in a yoke, 0, adapted to receive and partly encircle a transverse handle, D. A thimble, T, encircles the shank, and a spring, S, also encircling the shank and lying between the yoke and the thimble, tends to press the latter toward the r The shank is provided with two lugs, b,b', adapted to lie against the opposite faces of the blade when the shank is in working relation thereto and the inner margin of one of the halves of the blade is formed with a notch, N, adapted to permit the passage of the lug, b, when the shank is partially rotated to bring it into working position. The shank is of less diameter than the inner curve of the clasps, a, a, and is provided at a suitable point with a lug, b projecting sufficiently to bind against the inner face of the corresponding bridge, a, and hold the shank rigidly in position. The log, 6 is of slight width and it may therefore be easily ground or otherwise fitted to the bridge which it engages, and for this reason it is er internal diameter than the diameter of the shank instead of fitting the entire shank to,

the inner surface of the bridge. The shank terminates at one end in the yoke, C, adapted to clasp a wooden handle, D, of any desired form, and a tang, C, is formed integral with the yoke and is so placed as to enter a hole in the center of the handle. The outer face of the tang is provided with teeth, 0, adapted to enter the wood of the handle and the inner face is beveled longitudinally as clearly indicated in Figs. 2 and 3, so as to form a wedge having its base at its intersection with the yoke. A wedge, C having one face beveled to correspond with the beveled face of the tang C, is provided on its outer cylin drical face with teeth, 0, like those upon the tang, and its largest end or base has a head, C preferably of about the same diameter as that of the combined tang and wedge.

To apply the handle to the shank the opening in the handle is slipped over the tang until the handle is seated in the yoke. The wedge is then inserted and driven inward to the position shown in Fig. 2 and the parts are all so proportioned that when the wedge is in this position, the teeth upon the wedge and tang are forced into the wood of the handle and thus prevent longitudinal movement of the tang and wedge with reference to each other. The handle is thus held securely in place and is permanently fastened upon the shank. The fastening thus constructed is extremely cheap and simple and we have found 2. The combination with the shank, B, hav tive position; substantially as shown and deing the yoke, O, and tang, O, of the wedge, scribed. 0 and handle, D, the tang and Wedge having MICHAEL REDLINGERL their eontiguous faces beveled and their ex- CHARLES MORGAN. 5 ternal faces serrated, the handle, D, being formed with an opening adapted to receive Witnesses: the tang and wedge and the yoke, 0, being W. M. SNYDER, adapted to'clasp the handle when in opera- E. H. MORGAN. 

